Henry jansen haigiit



(No Model.)

H. J. HAIGHT. ATTAGHMENT FOR ELEGTRO MAGNETIC THERMOSOOPES. No. 401,348. Patented Apr. 16, 1889.

W1 1: nes ses',

UNITED STATES PATENT OFFICE.

HENRY JANSEN HAIGIIT, OF NEIV YORK, N. Y.

ATTACHMENT FOR ELECTRO-MAGNETIC THERMOSCOPES.

SPECIFICATION forming part of Letters Patent No. 401,348, datedApril 16, 1889.

Application filed March 7, 1837- Serial No. 229,938. (No model.)

1' 0 alZ whom it may concern:

Be it known that I, HENRY J ANSEN IIAIGHT, a citizen of the United States, residing in the city and county of New York, and the State of New York, have invented Improvements in Self-Recording Electro-Magnetic Thermoscopes 5 and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings, making part of this specification.

This invention is an improvement in the self -recording device for electro-magnetic thermoscopes-such as set forth in Letters Patent No. 358,854, granted to me March 8, 1887-and has for its purpose the regulation of the time-movements of the recording-tablet rolls by electric currents controlled by a clock movementinstead of by the direct mechanical action of a clock, as in the said Letters Patent.

My invention consists in means by which any desired number of tablet-rollers may be actuated at any place, and their time-movements regulated by a single electro-magnet situated in the main transmitting-circuit of a clock-time transmitter, or in a relay-circuit closed and opened by the closing and opening of the main circuit, in combination with one or more sets of tablet-rollers mechanically turned by one driving-shaft, an escapementwheel geared to the said driving-shaft, and an escapement or pallet lever controlled by an electro-magnet in a clock-tiinc-transmitting circuit.

In the accompanying drawings, Figure 1 represents a top view of two pairs of tabletrollers, an escapement-movement, an electro-magnet for regulating the same, and the necessary gearing to connect the several parts operatively; Fig. 2, an end view of the principal parts shown in Fig. 1; Fig. 3, a side view of the eseapenient device and portion. of the main shaft and an end view of the electro-magnet. Fig. i represents a series of diagrams illustrating the operation of the escapement.

In the eleetro-magnetic thermoseope set forth in the Letters Patentabove referred to I showed and described a tablet for recording the indications of temperature automatically as fast as transmitted. from a distant station by the thermoscopc. Since the tablet has to have a regular progressive motion and have the requisite graduations thereon by which to represent the hours as well as the temperature, I represented in the drawings of that patent a clock and means for transmitting the motions of the clock in a proper way to the tablet. This was shown as accomplished by two tablet-rollers on which the tablet is mounted, one of the rollers being rotated by the clock according to a prescribed rate of movement.

The purpose of the present invention is to transom the time -movements by electric means, so that not only the thermoscopic indications may be transmitted to a distant station, but also the time indications, and there made to regulate the motions of a shaft which rotates the tablet-rollers by a suitable eseapement controlled by the said electric transmission, and, since it is contemplated that more than one tablet may be required to be controlled by electric means at the distant station, I show how any number of tabletrollers may be actuated by one main drivingshaft (driven, say, by a weight) and controlled in its movements by one escapement.

In the drawings, A represents a drivingshaft to be turned by a weight or spring, so as to endow it with all the power necessary to turn all the tablet-rollers which may be connected therewith.

I show one set of tablet-rollers, B B, (the tablet-rolls and their posts belonging to the same being omitted in the drawings) driven immediately by this driving-shaft, which has two worm-screws, a a, gearing, respectively, into worm-wheels b b on the respective rollers. It isobvious that any required number of other tablet-rollers maybe turned in a similar way by an extension of the driving-shaft; but it is not necessary to drive the sets of tablet-rollers directly by the said drivingshaft, and it would not generally be convenient or desirable to arrange them all in one line.

Any position of the tablet-rollers may be provided for by means of their shafts, driven directly or indirectly by the main driving-shaft. To illustrate this, I show a transmitting-shaft, G, geared to the drivingsha-tt A by bevel gearwhecls 0 (Z. There maybe tablet-rollers driven directly by this shaft 0, though I have shown none in the drawings. A third shaft, D, however, is shown geared to the transmittingshaft 0 by bevel gear-wheels e f, and having Worm-screws g g thereon gearing into wormwheels h h, respectively, upon two other tablet-rollers, B B. In this way the number of tablet-rolls driven by one weight or spring may be indefinitely multiplied.

For the purpose of regulating the movement of the driving-shaft Aby the electro-magnetic time transmitter, I employ an escapementwheel, E, suitably connected with the drivingshaft byintermediate cogear, i j, so as to obtain the requisite speed of the shaft. There maybe various connections of an escapement for the purpose; but 'I have represented one which is both simple and effective. The escapementrwheel E is in the form of a planefaced disk having two concentric rows of escapement teeth or projections, k Z, on its face, as shown, the said escapement-teeth in the two rows alternating with one another in position, and preferably having a triangular form. An escapement-lever, G, has a pallet projection, 'm, which engages with these escapement-teeth, and has a similar triangular form in cross-section, but has its base inverted, so as to be opposite to the bases of the teeth on the escapement-wheel. This escapement-lever is an armature-lever, being attached to an armature, H, of an electromagnet, I, placed in the clock-time-transmitting circuit J or in a relay or local circuit controlled by the clock-time transmitter. The escapement-lever is suitably pivoted on a rod, n, so that its escapement end vibrates to the requisite extent as it is alternately moved in one direction by the attraction of the electro-magnet, and in the other direction by a counter-spring, 0, dependent upon the alternate closing and breaking of the electric circuit passing through the magnet. Suitable adjusting-stops, p q, limit the motions of the escapementlever in both directions. There may be a circuit-closer connected with the escapement-lever for a relaycircuit by having a contact-point,'r, on the said lever and making one of the adjustingstops, 1), the other contact-point.

The diagram Fig. 4 illustrates the operation of this escapement-movement. At the left hand the pallet m (shown in cross-section) is shown holding against one of the outer row, is, of escapement-teeth, while one of the inside row, I, of the escapement-teeth has just passed beyond the pallet. In this position the escapement-lever has passed to the extremity of its left-hand movement. In the middle position shown the escapement-lever has passed half-way to the right and ust cleared the escapement-tooth k, allowing the escapement-wheel to move round till the next tooth lof the inner row strikes the pallet, which is carried under the same, as shown in the right-hand position, where the escapement-lever has reached the extremity of 1ts righthand movement. Thus at every movement of the escapement-lever either to the right or to the left it allows one of the teeth of the escapement-wheel to pass.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In an electro-magnetic thermoscope, the combination of a mechanically-turned driving-shaft, tablet-rollers actuated directly by the said driving-shaft, an escapement-wheel geared to the driving-shaft, an escapement or pallet lever controlled by an elec'tro-magnet, a clock, and a cloek-time-transmitting circuit, including the coil of the said electromagnet, for the purpose herein specified.

2. The combination of a mechanicallyturned driving-shaft, an escapement-wheel geared to the driving-shaft, an escapement or pallet lever controlled by an electro-magnet, a clock, a clock-time-transmitting circuit, including the coil of the said electro-magnet, an additional shaft or shafts turned by the driving-shaft, and one or more sets of tablet-rollers driven by the said additional shaft or shafts, for the purpose herein specified.

3. The combination of a mechanicallyturned driving-shaft, tablet-rollers actuated by the said shaft, an escapement-wheel geared to the driving-shaft and provided with two concentric rows of alternately-arranged triangular escapement-teeth, and a vibrating escapement or pallet lever having a triangu-- lar pallet projection engaging with the said escapement-teeth and actuated by an electromagnet in the circuit of an electro-magnetic clock-time transmitter, substantially as and for the purpose herein set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

HENRY JANSEN HAIGHT. Witnesses:

O. S. NEWELL, MANLEY A. RAYMOND. 

